Compress a PDF to 300 KB — Free, No Watermark
Trying to get a PDF down to 300 KB? This tool hits 300 KB automatically — no guessing a quality level. Open it from this page with the 300 KB target preset, click Compress, and it searches for the best-looking version that still fits under 300 KB. A real Ghostscript engine downsamples the images while keeping your text fully selectable, so the file genuinely gets smaller instead of turning into a blurry picture. Free, no watermark, no account.
Can you get a PDF to 300 KB?
You don't choose a compression level — when you click Compress, the tool automatically searches for the smallest quality reduction that still lands the file under 300 KB, then reports the exact final size and whether 300 KB was met. A 300 KB target is realistic for most everyday documents. Very large multi-page scans and photo-heavy PDFs are the hard case: if one can't reach 300 KB without becoming unreadable, the tool returns the smallest possible version and says so, so the honest next step is to split it first with our Split PDF tool and compress each part.
How to compress a PDF to 300 KB
Three steps — no signup, no installation.
- 1
Open the compressor
This page opens the Compress PDF tool with the target size already set. Drag your file in (or click to browse). You can add several files at once — images and Word/Excel/PowerPoint documents are accepted too and converted to PDF automatically.
- 2
Confirm the 300 KB target
The target size is preset to 300 KB — there's no compression level to pick. Leave it as is, or use the size picker to choose a different target. Your text stays selectable no matter how small the target; only images are downsampled.
- 3
Compress & download
Click Compress. The tool searches for the best quality that still fits under 300 KB, shows the exact final size and whether the target was met, and lets you download each file individually or all at once as a ZIP.
How it hits 300 KB — the levels, handled for you
You don't choose one — targeting 300 KB auto-searches these image-quality levels for the best one that still fits. Text stays selectable at every level; only images are downsampled. For to 300 KB it typically lands near Maximum.
Low
300 dpi
Best quality — for printing
Medium
150 dpi
Balanced — email & uploads
Maximum
Typical for 300 KB72 dpi
Smallest file — tight limits
Compress a PDF to another size
Aiming for a different limit? Jump to the guide for your exact target.
Frequently asked
Common questions about compressing a PDF to 300 KB.
Yes. This page opens the compressor with the target preset to 300 KB, so you just click Compress — the tool automatically searches for the highest image quality that still fits under 300 KB and applies it. You never pick a compression level yourself. It then shows the exact final size and confirms whether 300 KB was met.
Almost always because it's a large, image-heavy scan. Photos and scanned pages are stored at high resolution, and a stack of them can't always be squeezed to 300 KB without becoming unreadable. The tool already pushes to its smallest setting automatically; when even that can't reach 300 KB, it returns the smallest possible version and tells you honestly. Split the PDF into smaller files with our Split PDF tool and compress each part — a few small files under 300 KB is usually more useful than one that won't fit anyway.
Yes. Unlike compressors that flatten each page into an image, we use Ghostscript, which keeps your text as real, selectable, searchable text and only downsamples the images. Your compressed PDF stays a proper document however small the target.
Yes — completely free, with no watermark, no daily cap, and no signup. Your file is uploaded over HTTPS, compressed, streamed back, and deleted from our servers immediately. Compress as many files as you like.
Ready to shrink your PDF?
Batch-compress up to 20 files, keep your text selectable, and download each or all as a ZIP — free, no watermark, no signup.